The first six exercises refer to the table of estimated regressions on page 246, computed using data for 2012 from the CPS. The data set consists of information on 7440 full-time, full-year workers. The highest educational achievement for each worker was either a high school diploma or a bachelor’s degree. The workers’ ages ranged from 25 to 34 years. The data set also contains information on the region of the country where the person lived, marital status, and number of children. For the purposes of these exercises, let

AHE = average hourly earnings (in 2012 dollars)
College = binary variable (1 if college, 0 if high school)
Female = binary variable (1 if female, 0 if male)
Age = age (in years)
Ntheast = binary variable (1 if Region = Northeast, 0 otherwise) Midwest = binary variable (1 if Region = Midwest, 0 otherwise) South = binary variable (1 if Region = South, 0 otherwise)
West = binary variable (1 if Region = West, 0 otherwise)

7.1 Add * (5%) and ** (1%) to the table to indicate the statistical significance of the coefficients.

Instructions: Florida Power and Light (FPL) are seeking to add two more nuclear power plants on the current Homestead location where two nuclear power plants already exist.

FPL seeks two more South Florida nuclear reactors article http://articles.sun-sentinel.com/2014-05-12/business/fl-fpl-nuclear-preview-20140512_1_turkey-point-fpl-reactors
Based on what you have learned so far from this class, discuss the following:

What problems might these new power plants encounter if they were built in South Florida with a lifespan of 40 years?
What advantages are there in giving FPL the licenses for these new plants?
What disadvantages are there in giving FPL the licenses for these new plants?
What are some other alternatives to the nuclear power plants?
What precautions would you demand if these power plants were built?
Given what you know, if you were in a position to approve or disapprove the licenses, what would you vote, and why?
Make sure to:

Write a short essay or paragraph of at least 300 words.

The market demand for gym memberships in North Florida is given by the equation

Q D N = 1000 − 20 p,

and the market demand for gym memberships in South Florida is given by the equation

Q D S = 1200 − 40 p.

Price is measured as the monthly membership fee and quantity is measured as memberships per month. In this problem assume North Florida and South Florida are separate and independent markets.

(a) Suppose the membership fee (price) is $40 per month in each market. Calculate the number of gym memberships that are expected in equilibrium in each market.

(b) Now suppose the membership fee (price) falls to $10 per month in each market. Calculate the number of gym memberships that are expected in equilibrium in each market.

(c) Using the $10 membership fee, calculate the price-elasticity of demand at the equilibrium in each market. Use the point elasticity approach.

(d) Using the $10 membership fee, calculate the total expenditures by consumers (TE) in each market.

(e) Using the $10 membership fee, calculate the total consumer surplus (CS) in each market.

The South Division of Bonita Company reported the following data for the current year. Sales $3,000,000 Variable costs 1,980,000 Controllable fixed costs 600,000 Average operating assets 5,000,000 Top management is unhappy with the investment center’s return on investment (ROI). It asks the manager of the South Division to submit plans to improve ROI in the next year. The manager believes it is feasible to consider the following independent courses of action. 1. Increase sales by $300,000 with no change in the contribution margin percentage. 2. Reduce variable costs by $155,000. 3. Reduce average operating assets by 3%. (a) Compute the return on investment (ROI) for the current year. (Round ROI to 2 decimal places, e.g. 1.57%.) Return on Investment Entry field with incorrect answer % (b) Using the ROI formula, compute the ROI under each of the proposed courses of action. (Round ROI to 2 decimal places, e.g. 1.57%.)

Return on investment Action 1 Entry field with incorrect answer % Action 2 Entry field with incorrect answer % Action 3 Entry field with incorrect answer %

As our planet warms, the change in temperature will have major effects on life. One of the possibilities for what might happen to a species is that species can move closer to the poles so that it experienced temperatures closer to what it has experienced in the past. A recent study of the range of limits of European butterflies found that, of 24 species that had changed their ranges in the last 100 years, 22 of them had moved further north and only two had moved further south. Assume that these 24 species are a random sample of butterfly species. Conduct a binomial test to test the hypothesis that the fraction of butterfly species moving north is different from the fraction moving south.   

1. Write the null and alternative hypothesis for the binomial test.
2. What is the observed value for the test statistics of the binomial test?
3. List all possible outcomes in which the number of butterfly species moving north is greater than the 22 observed.
4. Use R to conduct the binomial test and determine the p-value.  
5. Interpret the p-value and state the conclusion from your test

Design a class named Robot. The Robot class has three private data fields: position x, position y, and the direction (east, south, west, and north). Assume that positive x points to the east and positive y points to the south, and initially x = 0, y = 0, direction = "east".

Create a no-arg constructor and another constructor which sets the three data fields. Create the accessors and mutators for the three data fields.

Create a method named forward that moves the robot along the current direction for the given distance. For example, if the robot is currently facing east, forward(10) will move the robot along the positive x direction for 10 pixels.

In the main method, create a Robot object, move it to the east for 20 pixels, then set the direction to north and move 30 pixels, and finally set the direction to west and move 40 pixels. Find and display the final x and y values and the direction of robot by calling its methods. For example, for the sample testing above, your program should display x = -20, y = -30, and direction = west.

Section B: Essay
President Cyril Ramaphosa officially opened and addressed the first 4th Industrial Revolution SA - Digital Economy Summit. The Summit was hosted by the 4th Industrial Revolution South Africa partnership (4IRSA), an alliance between partners from the public and private sectors, academia and civil society. The 4IRSA partnership seeks to develop Human Resource practices that will enhance training and development in South Africa. Furthermore, the summit presented plans to develop training procedures that will be inclusive, coherent and responsive to the 4IR in the country. The president was quoted saying "Training programmes must allow learner's to be evaluated in the workplace after a period of approximately 6 months to determine whether their performance has improved and whether these improvement contributed to the achievement of objectives".

Use the statement above to identify the training level of needs the summit intended to highlight as well as the evaluation method the President suggested during the summit. Furthermore, briefly analyse the potential impact of the 4IR on the following classrooms.
 Interactive television classroom
 Distance learning
 Computer based training
Essay structure:
Introduction, Body, Conclusion- (3 mark)

Martin lives in South Carolina, and it has been a rough year for him. In May, Martin’s house caught on fire and he suffered a personal casualty loss of $4,500. Insurance, however, paid Martin $5,000 for the damages. Then, in September, Hurricane Florence destroyed his home, inflicting a $23,000 loss. If Martin’s AGI was $65,000 in 2018, how much can Martin deduct as casualty losses on Schedule A?

1) A magnet is dropped vertically through a horizontal loop of wire, with the south pole of the magnet pointing downward. Describe the induced current in the loop, as viewed from above the loop.

A)Counterclockwise as the magnet approaches, then clockwise after it passes through

B)Clockwise as the magnet approaches, then counterclockwise after it passes through

C)Counterclockwise always

D)Clockwise always

2) When current flows into a resistor in a circuit, what is actually happening to the individual electrons?

A)They slow down but do not fully stop - they exit the resistor going slower than when they entered.

B)They proceed through the resistor without slowing down.

C)A certain percent of them are absorbed by the resistor as they travel through. That percent depends on the resistance value.

D)They immediately stop moving as soon as they enter.

E)They slow down and gradually come to a stop

3) Two magnets, a powerful but small neodymium bar magnet and a weak but large iron horseshoe magnet, are placed a few centimeters from each other. Because the neodymium magnet is so small in size and in mass, it is the one that moves toward the stationary iron magnet.

What does this mean about the forces these two magnets exert on each other?

A)The force of the iron magnet pulling on the neodymium magnet is stronger

B)The force of the neodymium magnet pulling on the iron magnet is stronger

C)The two forces are equal in strength

D)Not enough information to decide\

4) A neutral, ungrounded ideal conductor with an irregular shape is placed in an external electric field. Which of the following is not true?

A)There is no net charge within the interior of the conductor

B)The electric field within the conductor is zero

C)The voltage throughout the entire conductor is the same everywhere

D)The external electric field exerts no force on the conductor

In a population of anteaters in South Africa, T₁ and T₂ are autosomal, incompletely dominant alleles that control tongue length. The alleles are polymorphic in this population, with f(T₁) = 0.95 and f(T₂) = 0.05. Anteaters that have long tongues are T₁T₁, T₁T₂ individuals have medium-length tongues, and T₂T₂ individuals have short tongues. A disease that wipes out the ants with deep nests occurs in this ecosystem, exerting strong natural selection on the long-tongued anteaters (they are ineffective at eating ants from shallow nests). As a result, 100% of the short-tongued anteaters survive this change in food supply, 40% of the medium-tongued anteaters survive, and 10% of the long-tongued anteaters survive.

A) Assuming the population begins in Hardy-Weinberg equilibrium and consists of 1,000 individuals, how many long-, medium-, and short-tongued individuals would you expect to be present in the original population (before selection)?

B) Assuming the population begins in Hardy-Weinberg equilibrium, what are the allele frequencies after one round (the initial round) of natural selection?

C) Assuming random mating takes places among the survivors of this first round of selection, what are the genotype frequencies of their offspring (the second generation)?

D) The deep-nesting ants have gone extinct and tongue length remains a trait under selection in the second generation of anteaters as in the initial population (i.e., same proportion of survivors). What are the allele frequencies in the surviving population of the second generation of anteaters when they begin to mate?